Door-check.



No. 842,121. PATENTBD 11111.22, 1907.

110011 CHECK.

APPLICATION FILED APR. l, 1905.

' ..35 contains the vcoiled spring .11, the spring. ,be--

45 X' `spring 11, and thespring 6,

ism for eifecting a cushionedchecking and 14 in the tube 10 bears against the spring '1 1 and a tie-sprin`g 15 passing through the parts the respective ends thereof, as shown in' Fig,` 5.

acts, through the ipiston, 'to compress the To all w21/mwst may concern.'

i view of a-ni'odiiiedjorni of the invention in its relation to a door that is open. Fig. 3 repsents a spring.

' socket 5'set therein, wh ich\ contains a coiled nspring 6 and a plunger 7, the'several parts be- `ture therein, set in the casing. The recess v y thes UNITED", sTArss vieiirinir oiiFioE.I

l. ROBERT-RI. 'sMi'ri-i, oiffiiiiLADELPiii'A,rsNNsrLviiNiA;

poos-CHECK; y i 'i i A Be it known-thai. L .ROBERT R. Sm'iii, resid-4 ingat Philadelphia, in the COuni'yofPhIation. f

This invention provides improved mechancllosing of doors 'or the' like, and it 'designed for etl`ecting these results byl simplel and inexpensive' means readily applied and Y operating in an improved manner:

ngthe accompanying draivin'gs, Figure 1 Y represents a longitudinal sectional View of the invention applied toa door that is closed; lFig. '2 representsy a longitudinal sectional iesentsv alongitudinal sectional vi'e'w of aturther modification of the invention in relationl to a door that is open` Eig. 4 represents'a tace viewof 'a bumperplata'and Fig. 5 repreplan view of a section ofv the tie- I f'thedrawings the part'l represents/the jainb-casin'g, the, part 2 the"'door, and. the parts 3,the hinges connecting them.V

As shown .in Figi 1, the recess 4, `t'orinediin the jainb-casing, has a tliinble or cylindrical ing held in place by a plate S, With an aper- Qin the door, has' thereinlt'he'tube 10 which ling held in place by la'plate 1,2, set in thedoorand having the bumper 13 thereon. i A piston described, is'engaged vto the thir'nble and ,the piston by keys, 16 passed through holes `17 -i-n When the door` is opened, the tie-spring released by the, Withdrawal of the bumper, throws the 'plungerv outwardly into-"the aperture 8. ,When i thef open dpr is released, the action of the 'spring 1 1 closes it, the iinal movement bei-ng checked by` the impact of -the,:buinper against.' the lunger,I Whose inward movement isehecke'd As' shoWninFig.' 2a recess 18.in 'the Spec'ication of Letters Patent. ,Applicativi filed Ami 1, 1965-. 'serial No. 253,249.

I Patentedl iai-1222, 1907.

therein, andthe plateQQ, Which-is secured to hin' thetube by VtheplungerQS, which Works thedoor, the'Y plate .having the apertpreee f plunger having the ange .28', which engages` the plate. The spring 19 extends through the.

plunger andthe coiled springs in'- the tube, b'e-l ing engaged to th'e piston SOQen'gaging the l spring 27,`,bythe key 31. When 'the door is opened, the tie-springacts,'thr01ighthepiston,

to compress the spring 27;'an'd Whe'nthe open .door is released the expansion oflthe cointhrough'which the -plungeiypiojects and the L 'pressedspringeloses it, the closing factionv be- A ing checked byg` the impact of Ithe' bumper against the plunger. and the resistance' oi the spring 26,' the latterhaving a suiIicientlylon/er strength thanthe spring 27,to perinit the door to close -'autoinatically. .25"

. -A.s shown in'Fig, 43,' thejainb-casing isrecessed t'o-receive the tube 32`and Athe'jthi'mble orsocket 33. The ltube contains vthespring 34and the', socket, contains 'the spring 35 the springs bearing upon oppositesides of the base ofthe socket. \The,' spring 35 isfheld in' the socket` bythe plunger',f WhichWoi-,ks I

therein, and-the plate 37', 'secured to 'the-cas-l ing, the` platef'hgvin'g the aperture 37.',in Which theplunger Works, and the" plunger .having theange 6,-which engages' the plate, Altube 39,'sets-in-thedooif, contains the coiledspring 4Q,.Which is heldin place by 'the plate 41, having the bumper 42 thereon. piston4'3, bearing on thespring 214, and a piston "44,' bearing .on .the springl40, lare conl' nected. by the tiel-spring v'45," 'passing therethroughand throughthe inteilmediate parts of the apparatus, the ti'eqspring being k,engagedvto the pistonsflby" means of the keys 46 spring'acts ,.through the pistons', to compress both- 'springs34 and'40, and when the opened door.. is re1e'afsed both of fthe'. lcompressed springs a'ct to close it,"fthe-iinal closing being checked bythe impact ofthe bumper against IIO plate 50 when the 'former'is a bumper and movable therein when it is a plunger. It'

l will be observed that the bumper which projects from eitherthe door or the jamb'provides a bearing on which the tie-spring acts to turn the door upon its hinges, avoiding the dead-center action that would otherwise. take place if the door were opened so that the connected members of the hinges lay -in ay common plane.

, Having described my invention, I claim#- 1. In apparatus of the class described, a

i stationary part, a swinging part, a tie-spring,

means for securing said tiespring to -said parts, said means comprising a 'coiled spring which acts to draw said swinging part toward said stationary part, and a second 'coiled spring and means coac-ting therewith,

to check the'movement of said swing-ing part toward said stationary part, substantially "as specilied. c y

2. In apparatus of thev class described, a

plunger, a bumper, a coiled spring actuatin said plunger in one direction, a 'second coile spring, mechanism comprising a tie-spring whereby said second coiled spring presses said plunger and bumper together,and meansl for supporting said springs, plunger and bumpcr'in operative relation to each other, substantially as specified.

3. In apparatus of the class described, a

stationary part, a swinging part, a bumperl fixed to one of said parts, a plunger engaged in reciprocating relation to the other of said parts, a coiled spring actuating said plunger, and mechanism comprism a second coiled spring and a tie-spring for rawing said parts together, substantially as specified.

4. InapparatusV of theclass described, a janib, a door hinged thereto, Ia bumper fixed to one of said parts, la plunger having a mov y able connection with the other of said parts,

means for cushioning the movement of said plunger, atie member and a coiled spring connected with said door and jamb, substantially as specified.

5. In apparatus of the class described, a movable part, afstationarypart, -an apertured plate and a plunger connected to one of said parts', a plate havinga bumper thereon fixed to the other of-said parts, a coiled spring for actuating said plunger, and mechanism comprising asecond coiled spring and a tie-spring for drawing 'said movable part toward said stationary part, substantially as specified. f

6. In apparatus of the class described, a

stationary part, a movable part hinged thereto, a recess 4in each of said parts, a coiled spring in each of said recesses, mechanism connected with one 'of said coiled springs and with the stationary art to drawl said movable part toward sai stationary other of said springsto check the4 action of said movable part, substantially as specified. 7. In'apparatus of the class described, a stationary object provided with a socket, a movable object provided with a socket, a springsuppor'ted-in one of said sockets, a

plunger movable in said last-named socket,

part, and mechanisml connected with the 

